Lathe attachment.



Nn. 697.8I9. Patented Apr.|5, |902.

w. H. DENT. l LATHE ATTACHMENT.

(Application filed Dec. 26, 1901.)

(No Modell) W/ TNE SSE S l/bl VE N 70H f Wllmm wat Uirn STATES a'rnNT OFFICE.

VILLIAM HENRY DENT, OF NEW YORK, N. Y.

LATHE ATTACHM ENT.

.SPECIFICATION forming part of LetterS Patent', No. 697,819, dated April 1 5, 1902.

Application tiled December 26. 1901. -Serial No. 87,400. (No model.)

To ftZf/ whom z't my con/cern:

Be it known thatl, WILLIAM HENRY DENT, a citizen of the United States, and a resident of the city of New York, borough of Manhattan,in the county and State of New York, have invented a new and Improved Lathe Attachment, of which thefollowing is a full, clear, and exact description.

This invention relates to a device adapted to be used in connection with turret-lathes to hold the turret in active or forward position and adapted to avoid the necessity of the clutch and T-wrench previously employed for this purpose.

The invention comprises a peculiarly-constructed spring-catch adapted to be engaged by the turret arm or lever to hold such arm forward, thus keeping the turret in operative position.

This specification is a specific description of one form of the invention, while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side view of the turret of the lathe, showing the invention. applied. Fig. 2 is a sectional plan view thereof on the line 2 2 in Fig. 1, and Fig. 3 is a detail sectional View of the attachment.

Ct indicates the turret, and o the bed of the lathe.

c indicates the lateral slide, and d the longitudinal slide.

e indicates the hand-lever for moving the slide d, which carries the turret ct and adjusts the longitudinal position of the turret. My invention consists in a device for holding the lever ein the forward or leftward position, as shown in Figs. 1 and 2.

yfindicates the body or supporting plate of the invention. This is adapted to be fastened to the slide c, as shown, the position of the platefbeing such that the lever or arm e will swing directly over the plate.

g indicates a stop-pin carried on the plate y, and h indicates a spring-latch fitted in a sleeve t, in turn secured to the plate f. The stem h of the latch h plays in the sleeve t and carries a head hzin position to be grasped in the fingers of the operator, so as to draw down the latch 7L when desired. A spring contained within the sleeve t acts to throw the latch 71. into normal position.

h3 indicates a pin carried by the head or finger-piece h2 and adapted when the head is drawn down and slightly turned to press .against the lower end of the sleeve t', thus holding the latch 7L below the top of the plate f, and consequently inoperative.

Vhen the lever or arm e is thrown forward, it rides over the latch h and the latch rcturns to its raised position, thus holdingthe lever securely in the desired adjustment. To return the lever, the finger-piece h2 of the latch h may be drawn downward, thus releasing the lever or arm. If it be desired to hold the latch lowered into inoperative position, this may be eected by turning the fingerpiece h2 so that the pin h3 moves out of registry with the opening in the sleeve t', whereupon the spring of the'latch h will press the piu against the lower end of the sleeve and the latch will beheld in its down Ward adjustment.

Various changes in the form and details of my invention may be resorted to at will without departing from the spirit of my invention. Hence I consider myself entitled to all forms of the invention as may lie within the intent of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A turret-lathe attachment, comprising a body-plate adapted to be fastened to the lateral turret-slide and to project therefrom, a spring-latch carried by the body-plate and normally projecting from the face thereof in the path of the turret-operating arm or lever, a stop-pin carried by the said body-plate at one side of the latch, and means for holding the latch in inactive position, as set forth.

2. Alathe attachment, comprising a bodyplate, a sleeve fitted therein and projecting from one face thereof, a spring-latch carried in the sleeve and beveled on its outer side, a

head or finger-piece on the stem of the latch IOO sleeve, and a stop-pin projecting from the face of the body-plate at the inner side of the latch.

3. A lathe attachment, comprising a bodyplate adapted to be fastened to the lathe, a

rsleeve secured in the body-plate and flush with the upper surface thereof, the sleeve projecting below Ithe lower face of the plate, a spring-latch carried inA the sleeve and having a stem extending through a contracted opening in the lower part of the sleeve, a head or finger-piece on the lower end'of the stem, and adapted to normally engage the lower end of the sleeve, an upwardly-extending pin on said head and adapted to engage an openving in the-'lower end of the sleeve, the head or finger-piece of the latch, when drawn down vto retract the latch being capable of being turned to move the pin out of registry with said opening to hold the latch retracted, and a stop-pin projecting upward from the plate at one side of the latch as set forth.

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

WILLIAM HENRY DENT.

Witnesses:

GEORGE A. WAGNER, JOHN H. MALoNE. 

